Lantern Slides 2

Solar disk showing transit of Mercury. Lick photo.

Solar disk showing transit of Mercury. Lick photo.

Tracks of Total Solar Eclipses Observed since 1842.

Venus?

Solar Eclipse, 28 May 1900, Thomaston, GA.
A.J. Reading, Toronto, Ont.

Corona during total solar eclipse.

The Heavens during the totality of the eclipse.

Solar Eclipse, 1893.

Calcium floculi Oct. 10. High H level. Slit lambda 3967.8

Calcium floculi Oct. 9. H₂ level, slit at lambda 3968.6